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Finding the Fourth Proportional to 315,297.20, 472,945.80 and 93,681.20

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Solution

The fourth proportional to 315,297.20, 472,945.80 and 93,681.20 is: 140,521.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,297.20 : 472,945.80 = 93,681.20 : x
  2. Step 2: Convert to fraction form
    315,297.20/472,945.80 = 93,681.20/x
  3. Step 3: Cross multiply
    315,297.20x = 472,945.80 × 93,681.20
  4. Step 4: Simplify right side
    315,297.20x = 44,306,130,078.96
  5. Step 5: Solve for x
    x = 44,306,130,078.96/315,297.20
  6. Step 6: Final answer
    x = 140,521.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.